Skip to content
GERBER.ai

ZIP 94027 · Atherton

Who lives in ZIP code 94027 (Atherton, CA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Atherton, CA · San Mateo County

uszips 2026
People7,002
Median age49.1
Household income$250,001
Home value$2,000,001
Median rent$3,501/mo
Poverty5.3%
College degree+83.1%
Commute23 min

Place

Metro area
San Francisco-Oakland-Fremont, CA
Wider region
San Jose-San Francisco-Oakland, CA
Metro division
San Francisco-San Mateo-Redwood City, CA
Time zone
Pacific
Density
538 / sq mi
Housing units
2,236

County

San Mateo100%

Share of the ZIP's people in each county.

Age mix

Under 105.0%
10–1919.6%
20s13.6%
30s4.9%
40s7.8%
50s17.4%
60s13.0%
70s10.8%
80+7.8%

25.7% are 65 or older; 81.6% are adults.

Household income

Under $25K7.2%
$25K–50K2.4%
$50K–75K1.8%
$75K–100K4.7%
$100K–150K11.5%
$150K+72.4%

83.9% of households earn $100K+. Median per person: $107,683.

Education (adults 25+)

Less than high school1.4%
High school4.5%
Some college10.9%
Bachelor's30.9%
Graduate52.2%

57.2% of degrees are in STEM fields.

Race

White68.2%
Black1.3%
Asian17.9%
Native American0.0%
Pacific Islander0.0%
Other1.9%
Two or more10.6%

14.2% Hispanic or Latino (of any race).

Households & family

Married
57.8%
Never married
32.6%
Divorced
4.4%
Widowed
5.2%
Family size
3.18
Dual-income families
38.3%

Housing

Own their home
87.6%
Rent burden
16.8%
Men / women
51% / 49%

Work

In labor force
48.2%
Unemployment
3.2%
Self-employed
25.9%
Farmers
0.6%

Community

Charitable givers
61.7%
Veterans
3.6%
With a disability
8.6%
No health insurance
1.7%
Limited English
2.4%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

Market now